NextEra Energy Transmission LLC, a subsidiary of NextEra Energy Inc., has completed the acquisition of GridLiance Holdco LP and GridLiance GP LLC from affiliates of Blackstone for approximately $660 million, including the assumption of debt.

“We are pleased to have completed the acquisition of GridLiance and welcome their team into the NextEra Energy family,” said Jim Robo, chairman and CEO of NextEra Energy. “This acquisition furthers our goal of creating America’s leading competitive transmission company and is consistent with our strategy of adding high-quality regulated assets to our portfolio.”

GridLiance owns approximately 700 miles of high-voltage transmission lines and related equipment with utility rates set by the Federal Energy Regulatory Commission. The company’s assets span three regional transmission organizations and six states.